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  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
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  <body>
    <script>
      //    //    1.
      // let obj = {
      //   name: '张三',
      //   age: 20,
      //   score: [88, 95, 76, 93]
      // }
      // // 2.
      // let newObj = obj
      // // 3.
      // newObj.name = '李四'
      // console.log(obj.name);//?

      //    1.
      let obj = {
        name: "张三",
        age: 20,
        score: [88, 95, 76, 93],
      }
      // 2.
      let newObj = obj
      // 3.
      newObj.name = "李四"
      console.log(obj.name) //?李四
    </script>
  </body>
</html>
